Improvement in extension-shelves for stoves



J A. C. BARSTOW.

Extension Shelves for Stoves.

Patented Aug. 4,1874

FIG-l.

INVENTEIR THE GRAPHIC CO. FHOTO-UTHJPK 4i PAP PLAEEJLY.

TTNITED STATES PATENT QFFIGE.

AMOS O. BARSTOW, OF PROVIDENCE, RHODE ISLAND.

IMPROVEMENT IN EXTENSlON-SHELVES FOR STOVES.

Specification forming part of Letters Patent No- 153,699, dated August4, 1874; application filed February 14, 1874.

To all whom it may concern:

Be it known that I, AMOS O. BARSTOW, of Providence, Rhode Island, haveinvented certain new and useful Improvements in Extension-Shelves forStoves and Ranges, of which the following is a specification, referencebeing had to the accompanying drawing, in which Figure 1 is a plan ofthe top plate of a stove or range with my extension-plate attached. Fig.2 is a transverse section of the same on line as m, Fig. 1.

My invention relates to stoves provided with a movable or adjustableshelf that forms an extension or enlargement of the stove-top; and itrefers particularly to that class of stoves in which the extension-shelfdepends for its support upon the stove-top alone.

It has been my object to provide a cheap and simple means for attachingthe extensionshelf to the stove-top, so arranged that the fasteningdevices shall be entirely concealed and out of view when the shelf is inplace. To this end I form that edge of the shelf B contiguous to thestove-plate A to fit snugly against the edge of the plate, and I attachto the under side of the shelf at its edge aforesaid tenons c, withhooks c at their outer ends.

In the dropping edge of the stove-plate, and in the dropping edge alone,I form mortises a, justlarge enough to permit the tenons to pass throughthem; and on the under side of the stove-top, at the point to whichtenons 0 extend when the extension-shelf abuts against more cumbersomestructure of the shelf than by my invention.

I am not aware of any instance before my invention in which the mortisehas been confined to the dropping edge alone of the stovetop.

The joint, as above stated, is thus covered and concealed, and cannotform -a dust and dirt trap, as it would otherwise, and the operation ofcasting is simplified and made less troublesome, the mortise being astraight one through the dropping edge only, instead of an angular onethrough both edge and top of the stove-plate.

What I claim, and desire to secure by Letters' Patent, is-

The extension-shelf provided on its under side with hooked tenons, incombination with the stove-top having teats or projections on its underside to engage the tenon-hooks, and mortises formed in its dropping edgeonly for the passage of the tenons, the latter taking their underbearing against the bottom of the mortises, and their upper bearingagainst the under side of the stove-top, the whole covered and concealedby the shelf when in position, as shown and set forth.

AMOS O. BARSTOW.

Witnesses:

J OHN H. GOULD, STEPHEN A. OooKE, Jr.

